MC68HC711E20CFN2

Manufacturer Part NumberMC68HC711E20CFN2
DescriptionIC MCU 20K 2MHZ OTP 52-PLCC
ManufacturerFreescale Semiconductor
SeriesHC11
MC68HC711E20CFN2 datasheets
 

Specifications of MC68HC711E20CFN2

Core ProcessorHC11Core Size8-Bit
Speed2MHzConnectivitySCI, SPI
PeripheralsPOR, WDTNumber Of I /o38
Program Memory Size20KB (20K x 8)Program Memory TypeOTP
Eeprom Size512 x 8Ram Size768 x 8
Voltage - Supply (vcc/vdd)4.5 V ~ 5.5 VData ConvertersA/D 8x8b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Package / Case52-PLCCLead Free Status / RoHS StatusContains lead / RoHS non-compliant
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Page 21/242

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1.4.1 V
and V
DD
SS
Power is supplied to the MCU through V
operates from a single 5-volt (nominal) power supply. Low-voltage devices in the E series operate at
3.0–5.5 volts.
Very fast signal transitions occur on the MCU pins. The short rise and fall times place high, short duration
current demands on the power supply. To prevent noise problems, provide good power supply bypassing
at the MCU. Also, use bypass capacitors that have good
high-frequency characteristics and situate them as close to the MCU as possible. Bypass requirements
vary, depending on how heavily the MCU pins are loaded.
MANUAL
RESET SWITCH
4.7 kΩ
OPTIONAL POWER-ON DELAY AND MANUAL RESET SWITCH
Figure 1-8. External Reset Circuit with Delay
Freescale Semiconductor
and V
. V
is the power supply, V
DD
SS
DD
V DD
V DD
2
4.7 kΩ
IN
1
TO RESET
RESET
MC34(0/1)64
OF M68HC11
GND
3
Figure 1-7. External Reset Circuit
V DD
IN
MC34064
V DD
GND
4.7 k Ω
1.0 µF
IN
RESET
MC34164
GND
M68HC11E Family Data Sheet, Rev. 5.1
Pin Descriptions
is ground. The MCU
SS
V DD
4.7 kΩ
TO RESET
RESET
OF M68HC11
21